how to troubleshoot if my Ford Explorer's remote start isn't working

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

467 words

Problem Statement

Learn how to troubleshoot and fix the remote start issue on your Ford Explorer. Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.

Symptoms

•Remote start button does not respond when pressed
•Dashboard lights do not illuminate when attempting to remote start
•Engine does not crank or start remotely
•Check engine light is illuminated
•Key fob battery is low or dead

Diagnostic Steps

1
Check the key fob battery and replace if necessary.
2
Ensure all doors are closed and locked, as remote start may not function if doors are ajar.
3
Scan for error codes using an OBD-II scanner to identify potential issues.
4
Verify that the vehicle is in a suitable environment for remote start (e.g., not in a garage, not too hot/cold).
5
Inspect the remote start system’s wiring and connections for any damage or loose connections.
6
Test the remote start feature with a different key fob if available.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Small flat-head screwdriver
•Multimeter
•OBD-II scanner
•Screwdrivers
•Wire strippers and connectors

Parts Required

•Key fob battery (CR2032)
•Electrical connectors (if needed)

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Diagnostic Steps

1
Check the key fob battery and replace if necessary.
2
Ensure all doors are closed and locked, as remote start may not function if doors are ajar.
3
Scan for error codes using an OBD-II scanner to identify potential issues.
4
Verify that the vehicle is in a suitable environment for remote start (e.g., not in a garage, not too hot/cold).
5
Inspect the remote start system’s wiring and connections for any damage or loose connections.
6
Test the remote start feature with a different key fob if available.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in a secure location and parked safely.
Disconnect the negative terminal of the battery for safety.

2. Replace Key Fob Battery

Sub-steps:
1. Open the key fob using a small flat-head screwdriver.
2. Remove the old battery and insert a new CR2032 battery, ensuring correct polarity.
3. Reassemble the key fob securely.

Tools Required:

Small flat-head screwdriver

3. Inspect Remote Start Wiring

Sub-steps:
1. Remove any necessary panels to access the remote start module.
2. Visually inspect the wiring for any cuts, breaks, or loose connections.
3. Use a multimeter to check for continuity in the wiring.
4. Repair any damaged wiring or connections as needed.

Tools Required:

Multimeter
Screwdrivers
Wire strippers and connectors (if repairs are needed)

4. Reconnect Battery

Sub-steps:
1. Reconnect the negative terminal of the battery.
2. Ensure the terminal is securely tightened.

5. Test Remote Start Feature

Sub-steps:
1. Lock the vehicle and press the remote start button on the key fob.
2. Observe if the vehicle starts successfully.